Chapter 547

Lin Zhengcheng picked up the smoothness gauge and measured; the screen showed "Ra0.35". He couldn't help laughing: "Success! Engineer Li, we've met the standard!"

Engineer Li came over to have a look, also breathed a sigh of relief, and patted his shoulder:

"You really thought this through! With this parameter and tool formula, subsequent batch processing will be no problem."

Meanwhile, Lin Qinhua and Chen Mo, at this moment, ran into trouble.

This morning, just after receiving the first batch of composite materials sent by the materials factory, during unpacking inspection, Chen Mo discovered that the surface color of two boxes of samples was a bit dark.

"Qinhua, look at this." He picked up a sample, compared it to the previously qualified test sample, "The color is different; maybe the curing temperature wasn't controlled properly."

Lin Qinhua took the sample, bent it with her hand, and its flexibility was slightly worse than the qualified sample:

"It must be that during batch production, the oven temperature fluctuated. Using such material on the fuselage poses too great a risk."

"I'll call the materials factory and have them come deal with it." Chen Mo turned around to make the call.

"Wait." Lin Qinhua stopped him, "Calling won't make it clear; let's go directly to the materials factory, inspect their production line on site, and help them adjust the process. This batch of materials is urgently needed; we can't delay the schedule."

The two simply packed up their testing tools and hurried to the materials factory.

Upon entering the factory grounds, they smelled a strong resin odor.

The factory director of the materials factory, Wang, was already waiting at the entrance, his face full of apology:

"Engineer Lin, Engineer Chen, we're really sorry; this batch of samples had a problem, it's our oversight."

"Let's first go check the workshop." Lin Qinhua didn't say more, heading straight to the production workshop.

In the workshop, several ovens were humming, and workers were busy loading and unloading samples.

Lin Qinhua walked up to an oven, opened the thermometer and inserted it; the screen showed the temperature was 8°C lower than the set value.

"The problem is found." She pointed at the oven, "The temperature probe has aged, causing a discrepancy between displayed and actual temperature, leading to insufficient curing."

The factory director's face turned red, and he quickly had someone replace the probe: "It's all our fault for not regularly checking the equipment.

But now the order is urgent; if we readjust the process, will it delay delivery?"

"We'll help you adjust." Chen Mo took out a process parameter sheet from his backpack, "Increase the curing temperature by 5°C, extend the holding time by 10 minutes; we'll now test a small batch of samples, and if they pass, we'll proceed with mass production."

The two worked in the materials factory's lab all afternoon, finally confirming the new process parameters. The tested samples had uniform color, and their flexibility and strength met the standards.

The factory director shook both of their hands, repeatedly thanking: "Thank you so much! Without you, our losses this time would have been huge."

"It's all for the project." Lin Qinhua wiped sweat from her forehead, "In future production, we must regularly inspect equipment; we'll also send technicians to oversee."

In the evening, Lin Qinhua and Chen Mo dragged their tired bodies back to the Lin Family Courtyard; Lin Zhengcheng had already returned earlier, sitting in the courtyard reporting to Lin Shengli about the trial machining situation.

"Dad, the blade machining issue is resolved; we can now batch-produce core components." Lin Zhengcheng's tone full of excitement, "Engineer Li said, with our optimized tool formula, machining efficiency can increase by 20%."

Lin Shengli nodded, about to speak, when the home phone rang. It was Lin Zhengpeng calling from the northwest.

"Dad, the J-20 mass production wrap-up work is going smoothly; next week we can finish assembling the final batch of fighter jets." Lin Zhengpeng's voice came through the earpiece, slightly hoarse, "The bomber test flight field is also ready, related support equipment has been debugged, just waiting for the prototype aircraft components to be shipped over."

"Good!" Lin Shengli's voice full of relief, "You've been working hard over there; take care of your health. As for the prototype aircraft components on our end, we'll ship them over as soon as possible."

After hanging up, Lin Shengli looked at the children in the courtyard, his tone solemn: "All lines are progressing; next comes the assembly and overall debugging of the prototype aircraft, this is the most crucial step, no mistakes allowed."

"Don't worry, Dad, we're all ready!" The three replied in unison.

Qin Jingru walked out holding the freshly cooked dinner, smiling: "Alright, alright, stop talking about work, it's time to eat! Today I made the braised fish and stewed spare ribs you love; eat up and nourish yourselves."

The red lanterns in the courtyard lit up, warm yellow light illuminating everyone's smiling faces.

The aroma of the food permeated the courtyard, intertwining with the children's discussion of work and the family's laughter and chatter, making it especially warm.

Lin Shengli picked up his chopsticks, gazing at the scene before him, his heart full of reassurance.

He knew the toughest assaults were still ahead, but as long as the family united and these young people dared to charge and strive, there would be no obstacle they could not overcome.

In the distant Xibei Shifeichang, moonlight spilled across the empty runway, and Lin Zhengpeng was still working overtime to organize the flight test plan.

He raised his head toward the east, as if he could see the red lanterns at home, feeling that warmth and support that spanned a thousand miles.

He gripped the pen in his hand and wrote on the plan the words "Ensure First Flight Success".

This was not only a demand on himself, but also a promise to his family and to the country.